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BQ33100EVM-001: how to calculate external balance circuit power dissipation

Roger Chen
Prodigy 40 points
Part Number: BQ33100EVM-001

hi there,

as tittle, I would like to know how to calculate R14~R17 power dissipation design margin. thank you.

  • 0
    TI__Genius 11535 points

    Hi Roger,

    To calculate the power you would do cell voltage/balancing current(based on resistor chosen). As far as the design margin goes, that would depend on your specific design. The design margin would just be to have it high enough so you don't burn your FETs and so the resistors can handle the desired cell balancing current.

    Best,

    Jessica